	.mask,.mark,.merk{
		width: 100%;
		height: 100%;
		position: fixed;
		left: 0;
		top: 0;
		background: rgba(0,0,0,0.6);
		display: flex;
		align-items: center;
		justify-content: center;
	}
	.box,.bmx,.bex{
		text-align: center;
		background: #122B40;
		padding: 24px 40px;
		border-radius: 8px;
		color: whitesmoke;
	}
	.bmx{
		position: relative;
	}
	.bmx .mark_bookname{
		position: absolute;
		top: 0;
		left: 0;
		right: 0;
		background: white;
		height: 20px;
		border-top-left-radius: 8px;
		border-top-right-radius: 8px;
		color: #000000;
	}
	.bmx div{
		width: 100%;
		display: inline;
	}
	.mask_tip,.mark_tip,.merk_tip{
		font-size: 16px;
	}